CN114810631A - Noise reduction type notebook computer cooling fan - Google Patents
Noise reduction type notebook computer cooling fan Download PDFInfo
- Publication number
- CN114810631A CN114810631A CN202210247576.2A CN202210247576A CN114810631A CN 114810631 A CN114810631 A CN 114810631A CN 202210247576 A CN202210247576 A CN 202210247576A CN 114810631 A CN114810631 A CN 114810631A
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- China
- Prior art keywords
- impeller
- hole
- bar
- bottom plate
- arc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a noise reduction type notebook computer cooling fan, comprising: upper cover plate, metal bottom plate and the impeller that is located between upper cover plate and the metal bottom plate, metal bottom plate are located a location section of thick bamboo periphery and open along circumference interval and have a plurality of bar through-hole, and it has air intake once to open between bar through-hole and the axle core rotor portion, and is adjacent a strengthening rib has between the bar through-hole, the bar through-hole covers a plastic rubber layer, and this plastic rubber layer is provided with the outside bellied bellying of a plurality of with impeller surperficial interval in opposite directions, and the bellying shape is triangle-shaped, metal bottom plate's bar through-hole inside wall is provided with a plurality of pair arc branches at interval, and every 2 arc branches are to setting up in opposite directions in the arc branch, and this arc branch imbeds in the lateral wall of plastic rubber layer. The invention not only reduces the whole weight of the axial fan, but also reduces the noise generated when the gas enters the impeller along the axial direction from the air inlet under the pressure difference and then is discharged out of the impeller along the radial direction, and also improves the whole heat radiation performance.
Description
Technical Field
The invention relates to a noise reduction type notebook computer cooling fan, and belongs to the field of electronic product cooling.
Background
A notebook computer is a small, portable personal computer, typically weighing 1-3 kilograms. Along with the progress of science and technology, the notebook size is littleer and more, and the weight is lighter and more, and overall performance requires more and more highly, and the functional requirement is more and more powerful, and the parts are more and more simultaneously, and the operating frequency of each part is more and more high, and the consumption increases along with it to the heat dissipation requirement to notebook inside is more and more high.
The heat dissipation fan is an important heat dissipation module for computer products, especially notebook computers, because the temperature directly affects the operating performance, stability and service life of the CPU, and the structural design of the heat dissipation fan relatively changes with the design development trend of computer product form. However, the conventional fan for electronic products has a relatively large noise.
Disclosure of Invention
The invention aims to provide a noise reduction type notebook computer cooling fan, which not only reduces the whole weight of an axis fan, but also reduces the noise generated when gas enters an impeller along an axial direction from an air inlet under pressure difference and then is discharged out of the impeller along a radial direction, and also improves the whole cooling performance.
In order to achieve the purpose, the invention adopts the technical scheme that: a noise reduction type notebook computer cooling fan comprises: the impeller comprises an upper cover plate, a metal base plate and an impeller positioned between the upper cover plate and the metal base plate, wherein a side wall plate is arranged at the edge of the metal base plate, an air outlet is formed in one side of the side wall plate, a circular upper air inlet is formed in the upper cover plate, a positioning barrel is arranged in the center of the metal base plate, the impeller further comprises a hub with a shaft core rotor part at the bottom and a plurality of blades which are arranged on the outer side wall of the hub at intervals, the shaft core rotor part of the impeller is connected with the positioning barrel of the metal base plate in a rotating fit mode, the blades of the impeller are arc-shaped in the radial direction, and the height of the blades of the impeller is gradually increased from one side close to the hub to one side far away from the hub;
the metal soleplate is located and opens a plurality of bar through-hole along circumference interval ground around the location section of thick bamboo, it has air intake once to open between bar through-hole and the axle core rotor portion, and is adjacent a strengthening rib has between the bar through-hole, the bar through-hole covers a plastic film layer, and this plastic film layer is provided with the outside bellied bellying of a plurality of with impeller surperficial interval in opposite directions, the bellying shape is triangle-shaped, metal soleplate's bar through-hole inside wall is provided with a plurality of pairs of arc branches at interval, and every 2 arc branches are to setting up in opposite directions in the arc branch, and embedding of this arc branch is in the lateral wall of plastic film layer.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the surface of the plastic plate layer opposite to the impeller is provided with a recessed area.
2. In the above scheme, the convex part is arranged in the concave area.
3. In the above scheme, the lower air inlet is located right below the impeller.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:
1. according to the noise reduction type notebook computer cooling fan, the metal bottom plate is positioned on the periphery of the positioning cylinder and is provided with the plurality of strip-shaped through holes at intervals along the circumferential direction, the reinforcing rib is arranged between every two adjacent strip-shaped through holes, the strip-shaped through holes cover the plastic rubber plate layer, and the surface of the plastic rubber plate layer, which is opposite to the impeller, is provided with the plurality of convex parts which are convex outwards at intervals, so that the overall weight of the axial fan is reduced, and the noise generated when gas enters the impeller from the air inlet along the axial direction and then is discharged out of the impeller along the radial direction under the pressure difference is also reduced, so that the comfort is brought to a user.
2. According to the noise reduction type notebook computer cooling fan, the inner side wall of the strip-shaped through hole of the metal base plate is provided with the plurality of pairs of arc-shaped supporting strips at intervals, 2 arc-shaped supporting strips in each pair of arc-shaped supporting strips are oppositely arranged, and the arc-shaped supporting strips are embedded into the side wall of the plastic plate layer, so that the bonding strength of the metal base plate and the plastic plate layer is improved, the reliability of the fan is improved, and the service life of the fan is prolonged; the blades of the impeller are arc-shaped in the radial direction, the height of the blades of the impeller from the side close to the hub to the side far away from the hub is gradually increased, the integral wind sweeping capacity of the fan is improved, and therefore more heat is discharged in unit time in a narrow space, and the integral heat dissipation performance is improved.
Drawings
FIG. 1 is a schematic top view of a noise reduction type notebook computer cooling fan according to the present invention;
FIG. 2 is a schematic view of a bottom view of a cooling fan of a noise-reducing notebook computer according to the present invention;
FIG. 3 is a schematic view of a partial structure of a noise reduction type notebook computer cooling fan according to the present invention;
fig. 4 is an exploded view of the noise reduction type notebook computer cooling fan according to the present invention.
In the above drawings: 1. an upper cover plate; 2. a metal base plate; 3. an impeller; 31. a hub; 32. a blade; 301. a shaft core rotor portion; 4. a side wall panel; 5. an air outlet; 6. an upper air inlet; 7. a positioning cylinder; 8. a strip-shaped through hole; 9. reinforcing ribs; 10. a plastic sheet layer; 101. a recessed region; 11. a boss portion; 12. arc-shaped branch bars; 13. a lower air inlet; 141. a bolt; 142. and (4) inserting the jack.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a noise reduction type notebook computer cooling fan comprises: the impeller comprises an upper cover plate 1, a metal base plate 2 and an impeller 3 positioned between the upper cover plate 1 and the metal base plate 2, wherein the edge of the metal base plate 2 is provided with a side wall plate 4, one side of the side wall plate 4 is provided with an air outlet 5, the upper cover plate 1 is provided with an upper air inlet 6, the center of the metal base plate 2 is provided with a positioning cylinder 7, the impeller 3 further comprises a hub 31 with a shaft core rotor part 301 at the bottom and a plurality of blades 32 arranged on the outer side wall of the hub 31 at intervals, and the shaft core rotor part 301 of the impeller 3 is connected with the positioning cylinder 7 of the metal base plate 2 in a rotating fit manner; the blades 32 of the impeller 3 are arc-shaped in the radial direction, and the height of the blades 32 of the impeller 3 gradually increases from the side close to the hub 31 to the side far from the hub 31;
a plurality of pairs of arc-shaped supporting strips 12 are arranged on the inner side wall of the strip-shaped through hole 8 of the metal bottom plate 2 at intervals, 2 arc-shaped supporting strips 12 in each pair of arc-shaped supporting strips 12 are arranged oppositely, and the arc-shaped supporting strips 12 are embedded into the side wall of the plastic plate layer 10; the metal bottom plate 2 is located 7 peripheries of location section of thick bamboo and opens along circumference interval and has a plurality of bar through-hole 8, and is adjacent a strengthening rib 9 has between the bar through-hole 8, bar through-hole 8 covers a plastic board layer 10, and this plastic board layer 10 is provided with the outside bellied bellying 11 of a plurality of with the surperficial interval in that the impeller 3 is in opposite directions.
The surface of the plastic plate layer 10 facing the impeller 3 has a concave area 101, and the convex part 11 is arranged in the concave area 101.
A lower air inlet 13 is arranged between the strip-shaped through hole 8 of the metal bottom plate 2 and the shaft core rotor part 301.
The upper air inlet 6 of the upper cover plate 1 is a circular through hole.
The upper cover plate 1 and the side wall plate 4 are connected by a plurality of pairs of pins 141 and insertion holes 142.
Example 2: a noise reduction type notebook computer cooling fan comprises: the impeller comprises an upper cover plate 1, a metal base plate 2 and an impeller 3 positioned between the upper cover plate 1 and the metal base plate 2, wherein the edge of the metal base plate 2 is provided with a side wall plate 4, one side of the side wall plate 4 is provided with an air outlet 5, the upper cover plate 1 is provided with an upper air inlet 6, the center of the metal base plate 2 is provided with a positioning cylinder 7, the impeller 3 further comprises a hub 31 with a shaft core rotor part 301 at the bottom and a plurality of blades 32 arranged on the outer side wall of the hub 31 at intervals, and the shaft core rotor part 301 of the impeller 3 is connected with the positioning cylinder 7 of the metal base plate 2 in a rotating fit manner; the blades 32 of the impeller 3 are arc-shaped in the radial direction, and the height of the blades 32 of the impeller 3 gradually increases from the side close to the hub 31 to the side far from the hub 31;
a plurality of pairs of arc-shaped supporting strips 12 are arranged on the inner side wall of the strip-shaped through hole 8 of the metal bottom plate 2 at intervals, 2 arc-shaped supporting strips 12 in each pair of arc-shaped supporting strips 12 are arranged oppositely, and the arc-shaped supporting strips 12 are embedded into the side wall of the plastic plate layer 10; the metal bottom plate 2 is located 7 peripheries of location section of thick bamboo and opens along circumference interval and has a plurality of bar through-hole 8, and is adjacent a strengthening rib 9 has between the bar through-hole 8, bar through-hole 8 covers a plastic board layer 10, and this plastic board layer 10 is provided with the outside bellied bellying 11 of a plurality of with the surperficial interval in that the impeller 3 is in opposite directions.
The surface of the plastic plate layer 10 facing the impeller 3 has a concave area 101, the convex part 11 is arranged in the concave area 101, and the convex part 11 is triangular.
The lower air inlet 13 is located right below the impeller 3.
A lower air inlet 13 is arranged between the strip-shaped through hole 8 of the metal bottom plate 2 and the shaft core rotor part 301.
When the noise reduction type notebook computer cooling fan is adopted, the whole weight of the axis fan is reduced, and the noise generated when gas enters the impeller from the air inlet along the axial direction and then is discharged out of the impeller along the radial direction under the pressure difference is also reduced, so that the comfort is brought to a user; in addition, a plurality of pairs of arc-shaped supporting strips are arranged on the inner side wall of the strip-shaped through hole of the metal bottom plate at intervals, 2 arc-shaped supporting strips in each pair of arc-shaped supporting strips are arranged oppositely, and the arc-shaped supporting strips are embedded into the side wall of the plastic plate layer, so that the bonding strength of the metal bottom plate and the plastic plate layer is improved, the reliability of the fan is improved, and the service life of the fan is prolonged; the blades of the impeller are arc-shaped in the radial direction, the height of the blades of the impeller is gradually increased from the side close to the hub to the side far away from the hub, the overall wind sweeping capacity of the fan is improved, more heat is discharged in unit time in a narrow space, and the overall heat dissipation performance is improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. A noise reduction type notebook computer cooling fan is characterized in that: the method comprises the following steps: an upper cover plate (1), a metal bottom plate (2) and an impeller (3) positioned between the upper cover plate (1) and the metal bottom plate (2), the edge of the metal bottom plate (2) is provided with a side wall plate (4), one side of the side wall plate (4) is provided with an air outlet (5), the upper cover plate (1) is provided with a circular upper air inlet (6), the center of the metal bottom plate (2) is provided with a positioning cylinder (7), the impeller (3) further comprises a hub (31) with a shaft core rotor part (301) at the bottom and a plurality of blades (32) which are arranged on the outer side wall of the hub (31) and distributed at intervals, the shaft core rotor part (301) of the impeller (3) is connected with the positioning cylinder (7) of the metal bottom plate (2) in a rotating fit manner, the blades (32) of the impeller (3) are arc-shaped in the radial direction, the height of the blades (32) of the impeller (3) is gradually increased from the side close to the hub (31) to the side far away from the hub (31);
metal soleplate (2) are located a location section of thick bamboo (7) periphery and open along circumference interval and have a plurality of bar through-hole (8), it has air intake (13) once to open between bar through-hole (8) and the axle core rotor portion (301), and is adjacent a strengthening rib (9) have between bar through-hole (8), bar through-hole (8) cover a plastic board layer (10), and this plastic board layer (10) is provided with a plurality of outside bellied bellying (11) with impeller (3) interval in opposite directions, bellying (11) shape is triangle-shaped, bar through-hole (8) inside wall of metal soleplate (2) is provided with a plurality of pairs of arc branch strip (12) at interval, and every is 2 arc branch strip (12) and is setting up in opposite directions in arc branch strip (12), and this arc branch strip (12) imbeds in the lateral wall of plastic board layer (10).
2. The noise reduction type notebook computer cooling fan according to claim 1, wherein: the surface of the plastic plate layer (10) opposite to the impeller (3) is provided with a concave area (101).
3. The noise reduction type notebook computer cooling fan according to claim 2, wherein: the concave area (101) is internally provided with the convex part (11).
4. The noise reduction type notebook computer cooling fan according to claim 1, wherein: and the lower air inlet (13) is positioned right below the impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247576.2A CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247576.2A CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
| CN202110249778.6A CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Division CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810631A true CN114810631A (en) | 2022-07-29 |
| CN114810631B CN114810631B (en) | 2023-07-14 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Active CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
| CN202210253807.0A Pending CN115045848A (en) | 2021-03-08 | 2021-03-08 | Cooling fan of intelligent terminal equipment |
| CN202210247576.2A Active CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Active CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
| CN202210253807.0A Pending CN115045848A (en) | 2021-03-08 | 2021-03-08 | Cooling fan of intelligent terminal equipment |
Country Status (1)
| Country | Link |
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| CN (3) | CN113137387B (en) |
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| KR20090094913A (en) * | 2008-03-04 | 2009-09-09 | 최상국 | Filter device for dust prevention equipped to cooler-fan for computer |
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2021
- 2021-03-08 CN CN202110249778.6A patent/CN113137387B/en active Active
- 2021-03-08 CN CN202210253807.0A patent/CN115045848A/en active Pending
- 2021-03-08 CN CN202210247576.2A patent/CN114810631B/en active Active
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|---|---|---|---|---|
| US20090067991A1 (en) * | 2007-09-07 | 2009-03-12 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Cooling fan |
| CN101413515A (en) * | 2007-10-19 | 2009-04-22 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101498317A (en) * | 2008-02-01 | 2009-08-05 | 富准精密工业(深圳)有限公司 | Heat radiating fun and impeller thereof |
| KR20090094913A (en) * | 2008-03-04 | 2009-09-09 | 최상국 | Filter device for dust prevention equipped to cooler-fan for computer |
| CN101586575A (en) * | 2008-05-23 | 2009-11-25 | 富准精密工业(深圳)有限公司 | Centrifugal cutter and use the electronic equipment of this centrifugal cutter |
| CN101825094A (en) * | 2009-03-03 | 2010-09-08 | 建准电机工业股份有限公司 | Radiating fan |
| CN103089706A (en) * | 2011-10-31 | 2013-05-08 | 富瑞精密组件（昆山）有限公司 | Cooling fan |
| JP2013076410A (en) * | 2013-01-18 | 2013-04-25 | Panasonic Corp | Blower device |
| CN109578328A (en) * | 2018-12-27 | 2019-04-05 | 泛仕达机电股份有限公司 | To centrifugal blower after a kind of centrifugal wind wheel and low noise including the wind wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113137387B (en) | 2022-02-08 |
| CN114810631B (en) | 2023-07-14 |
| CN113137387A (en) | 2021-07-20 |
| CN115045848A (en) | 2022-09-13 |
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